Improvement in windlasses for oil-wells



l 1' o-ll I l' I7 i INVENTORS ATTORNEY W. 8v G. KOCH. Windlass forOil-Wells.

Patented Oct. 1, 1878.

.fr/wm WITNESSES @y UNITED STATES PATENT OFFICE.

WILLIAM KOCH AND GEORGE KOCH, OF S'I. PETERSBURG, PENNSYLVANA.

IMPROVEMENT IN WINDLASSES FOR OIL-WELLS.

Specification forming part of Letters Patent No. 208,611, dated October1, 1878; application filed March 31, 1877.

To all whom t may concern:

Beit known that we, WILLIAM KOCH and GEORGE KOCH, of St. Petersburg, inthe county of Clarion and State of Pennsylvania, have madea new andImproved Windlass 5 and We hereby declare that the following is a full,clear, and exact description thereof, reference being had to theaccompanying drawing, forming part of this specification, and to theletters of reference marked thereon.

In the drawing, Figure 1 represents a front elevation of our improvedwindlass; Fig. 2, an outside end view of the brake-wheel; and Fig. 3, asimilar View of the grooved wheel.

Our invention relates to an improvement in that class of windlasses ormechanical cont: ivances known in the oil-producing regions as abull-wheel, the use of which is so generally understood by operators inthose regions that no description of such use is herein deemednecessary.

In this case the construction of the shaft or axle A and the inode ofattaching the spokes thereto are, in most respects, like thosepreviously made and generally used. The spokes are wide enough to carry,at a little distance from the rim and nearer the middle of the shaft,abroad circular guidefange, E,Which is bolted thereon, thus giving ampleroom for the proper handling of the wheel by the projecting side pins, ee, arranged around the inside rim of this wheel. The setting of thisguide-liange E some distance from the wheel also accomplishes the objectof preventin g a rope, when wound about the shaft, from coming incontact with the projecting pins e, which it would otherwise do if theguide were placed near the rim of thewheel.

The grooved wheel D has, usually, a simple narrow groove, F, in itsface, in which a rope is intended to run. The brake-wheel B, at theopposite end of the shaft A, is ofthe same diameter with that of thegrooved Wheel; but its face G is made broad, and protected on each edgeby a slightly-elevated flange, ff, while the pins c, for moving theWheel by hand, are arranged, in this case, at equidistant points aroundthe outside of its rim, in a manner similar to those on the inside rimof the grooved wheel.

On the shaft A, adjoining this brake-wheel B, is placed a circularguide, H, which prevents the rope from traveling too far in thatdirection and rubbing against the side of the brakewheel or interferingwith its movement; and on the shaft, near the grooved wheel D, is asimilar guide, E, placed there for the same purpose.

We are aware that a bull-wheel having the brake-Wheel on one end of theshaft and on the other a grooved driving-wheel is not new. Hence, We donot claim such devices; but

What we do claim is- In a bull-wheel, the combination, with the shaft A,of the shouldered inner-extended spokes C, the grooved wheel D, havingthe pins e of the guide-flange E secured to the projecting edges of saidspokes, and on a line with the pins, whereby the rope on the shaft isprevented from coming in contact with the said pins, substantially asspecified.

WILLIAM KOCH. GEORGE KOCH.

Witnesses:

JOHN LARGOH, ARoN KOCH.

